Engine governor dampener



J. c. sLoNNEGER ENGINE GOVERNOR DNPENER 'original Filed March 14, 194e l Aug. 19, 1952 ffy f INVENTOR.

John C. S/ormeger BY A ATTQRNEYS Patented Aug. 19, 1952 iNdnvEGovnNoRDAiurENEn 'i V.liliny-(. Stlon'neger, Dallas, Tex., assigner to The :Continental 'Supply Company, llallaspTvexgea corporation `*of Delaware vThis, inventionl'reiaies .renew and useful Apnlcativn-January 3,;1948, fis va division of applicationl Serial No. 654,427, March 14,'1946gjiow PatentjNo. 2,590,134,0dated March'- 25 1`95 21., Divided 'and this application Serial No. 125,290`

ienne; 'i (01. 26e-L15) responsiverneans under" certain load conditions,

which will prevent collapsing of speed'- j responsive -meansupon asudden reduction in"- speed with the consequent suddenopening of the engine throttle and conversely, if the speed should be suddenlyv increased, them," speedfresponsive j means will beretarded or clarififped'and "smoother" engine operation will're'sult, i"

v'Another object of the 'invention to provide a dampener'having a liquid damping plunger :coe

acting with the'governor arms" to control 'the out-"- j ward displacement of said' 'arms and also oo" acting rwith j spring-pressedthrottle means for controllingthe throttle actuation or thetenginelV under varying loads and speedsf' i plunger carries 'a thrus'tdisk 29 on its upperend.`

A further, obiectof the invention is 'to provide an improved damping means combined with thef` 5 rotating governor vrshaft;l whereby "a' simplified, efficient'and compact vstructure is obtained."

A eonstruciion desi'gned'ie 'carry eutithejinven-jj tion lwill be hereinafter describedtog'et 'erf other features ofthe invention,

'rne'invention win be'mdre "readily iindersie dj; from a reading of the following specicationand by `reference to the acconipanyingf.A drawing`s, wherein an example of-ff the, invention i`sfshown,

and'whereim'vv A. Fig. 1y isv a side levation, vofl stu'iictedV in accordance `with the Fia'zis a .hoiizcniei eross-gseeiidnaiview teken;

on the line 2-2 ofFig'.' 1;

Fig.f3 is'a reduced horizontal cross-'sectional o f4() Fi'g14' is "a slightly enlarged vertical sectional" view of the governor showing yits lubricatingand driving means.y

yThis application isr'afdivis'ionl ofjrny oo -lpending application filed January 3, '1948,v Serialf'lio.. 45 7 which in'turn .was a''livision'of a then en -pending application led March 114,"i1946;]1Seria1No;

In/the drawings,4 the umeral end-ofthe camshaft |21 has aihorizontalgear I3 fastenedther'eon. This gear drives a horizontal'l pinion I4 fastened on 4the lower endv of the rfc# o l In designates the "1 topwall "of an 'engine crankcase II. 'The-upper'w which engage'beiween ineiiisk'ze and the boiioin serial No. 457, 'which tion of the shank` and theitubular portion offthe governorishafta horizontal -ballbearing assembly I8 is provided for rotatably.; supporting ysaidl shaft. Thebearing vassemblyis"mounted-in a collar- I9*v andv held in yplaeeby aretaining ring 20.` ''.The.; collarts inA a circular opening 2| vformed thezf: top'w'all IIlof the crankcase and depends from `the"11 bottom of a flanged governor base 122n .whichisz bolted` onpsaid. top wall.' The igovernor .shaft .isi-:2 enclosedxwithin and spaced. from a sleeve-23 con-l nectingthe anges of the base. Theupper end of vthe shaftv isireducedf and thas fastened'.theret'm' f: thexhub-24 of -a transverseJgooved bracket-i2 iv which hub rotates`in' the upper.T end of the-sleeve and extendsthereabove. I 'f'f' A dome-shaped governor housing 26 is 'secured in an annular recess?! in'the'top ange of the housing by means of bolts 28V." The shaft I6 terrninates below fthe upper end of the hub 24":Land receives avertically slideable plunger 28.. This detent engages in'aninvertedcupf34.1-"fv j Since the governor shaft iljs rotatable, t l1e"liubf 24 and the bracket 25 are likewise fr'otfat'able.; thev bracket rotating in the lower'opo tion of 'thfej'goverf norhousing and the plurigerv therethroughAngular governo 'j Y mounted 'in i' thel groov'ed endsjjof' tlie bracket pins* 36v and have inwardly-'directed fingers Of. `hs".l9lt -Wigh's 38 diseased; 0,11 ith' 'up per end s' vof; the farms voverhang thel fingers andi tend to-swn'g 'thearms toward'v Athe' detent;` The f `governor arms workl in the 'usual manner, w h 4. the weights aredisplaoed outwardly as the 'spee ;j of rotation increases, whereby the 'plungerlf' is elevated which carries the'cupy 3|L andthe detenta-" 32 upwardiya 1 e j The upper 'cup 3 4 isV p'ivotedona ltransverse piny aain' tneyoke4n'- of en emluex'ceniiingj iateregiiy -j from a rock'shaftfllZ ;f said' ar'mbing fastenedo f the shaft-by a' pin '4*3. The'lshaft-fisouriialedf inbearing sleeves 44* extending. through bosses 45 f in the upper portion of the-housing 26; .Theupi per enclo'f the detent 32 bears against the pin 39g P Thiszfshaft extends 'through one sicleofthe housif? AVing and has clamped Ori its xtndd'di" bl'li-"i knob l is fastened on one endfof the-shaft forY rotating the same. A coiled spring 52 has its lower end engaged over a stud 53 on the exterior;`

of the governor base 22. The upper end of the in the spiral groove of the shaft 49.

It will be observed that when .the gove I6 is revolved and the arms 35 are displaced outwardly, the disk 29 will be liftedq and. consequently 4 opened as rapidly. In all speed changes, the piston 30 exerts a damping action to steady the speed of the engine.

Where. the engine is used with acomparatively rapidly uetuatingloadastior instance where an oil well pump is being driven, the damping action @has the eeot of producing substantially no movement of the throttle valve since the governor spring is formed into a hook 54 which'isengagedf -a'ssume's substantially an average position, due to speed-changes, as will be obv1ous -the iact ...that the .governor does not react to `'i5-ron' ifthef oregeing-y description. Should the averthe detent 32 and cup 34 wlsWi-xig the armi' f'. `1

whereby the shaft 42 will benrooked, which turn, will rock or swing the Alever-4I?" By this arrangement, the amplitude of the swinggorthe; long arm 48 of the lever 46 will be controlled Yby m the Posltlon 0f the throttlethe centrifugal action of the governor. Further; it will be seen that since the arm 41 extends laterallyi'froml the. roel; shaftAZ on. the sameside'. I of;sarei.-shef-trx'is` the-.armu the; sprngwill. exert a-dow'nwardi forceuponnthe. plunger 2.8L' vthrough. the elements connected; therebetween.. .Theapull minedxrbyY the.spacingiof the; hook V54 fromvth'e shattsiufonzwhich the lever isfastened. .Ii'the knobyisturnedxto move'V the honk. closerxtosaid tiomothefsliaft issrev'ersedto moveathe spring hook outwardly; thenutheleverage is increased.; alsosasfthefhoolet is moved; outwardly on; the.

shaftltherspringwillabe adjusted at an increasing' angle tofthe1perpendicular,andltherefore. its tension will be increased. Thelowenendlofz-the lever aimf4.y is V pivotally lconnected to athrottle rod ,5.6

which:- is suitably attached'to the: throttle; of. azi.

carburetor Griet-shown) or other fuel devicefighe: forces ,exertedy bythe centrifugal actionV ofthe-fshatt. L6. increase in 'speed willv raise.- theplunger 28? and. if'this occursA suddenly, a-

partlalivacuuni willbelproduced below` the piston; 30. beca-usejof .the comparatively slow b y-passing ofthe oil'rbala'nce connedin the governorlshaft;

This vacuum, .of course, slightly retards theraction. of the governor and momentary slightoverspeed Y ingmay result; Ifithe increaseY in s peedis maintained.. theV plunger. willbeurther elevated; asthe oil.' completely. Ilsthebore below the piston Y and thu's.lre'lieves.the force of the partial vacum o n the.. pl-ixnger'.V "Nowl `ffthe speed should belsudff delyjdecijeased; the plungerY can move-Qdowng widly'. olly as rapidly as the unbalanced "foiloelA acting. downward causes the. piston to-y by-.pass the' oil. trappedl'thereund'en "ByL controlling the cleara'nce, between. the piston' and theY bore: ofthegovernor shaft, the. rate at which thel oilley-fH passes islegulated and thusfupon the downwardmotion of the. plunger, a greater Aretarding.- org damping-action mayv be, obtained than during the unward'motionthereof. I, t' is'. of course, understood that thegovernor is. so connected tothe throttle of thecarburetor l thatnn upward fr'notionoif the. plunger- Z' causes;

thethrottle toymove'toward. a closedfposition and".v

unen` a downwardmovement of. the plunger, move;A towardan-open position.- Inview of; the5 foregoing, it'r pointed;.out that'beause; ofY the; damping-.vor retarding actionthe throttle may be.

Vl'l.'

:out'thaztlitbe change of load or speed is of short compaatively-evenffand steady mannen-g explanwtgrmhelfeoff and;irarsiousschangesaintthee yage load be definitely changed, the spring and governor' weights'will slowly assume a new average-posi'tio1'to maintain balance, but it is pointed duzatin; Athere!maybe substantially no change In. .ordinary governors. the mechanism is so constructed that a sudden reduction in speed will cause the governor weights-to collapse,A whichmill result inY aisudden opening. ot thethrottle. v I-Igowfever, the dampingv action4 hereindescribedgavoids this' condition and the throttle; lwillr opens.l vn. `It pointedut that the y sensitivity .ofthe governor isnotv impairedqby thiss oil=` damper. On thecqn; traer-f. the arrangement 2f-:the Spiral shaft. 14.9.@ andispring, v52 providesrtor very-accurate adjustmentfas; speedwhichthe governor. Windham-. taingunderfrapidlly uctuating-loads. 'i

Thefknob-.SL provides aeonveni'ent meanslioz adjusting .the governor. for predeterinined.A speeds and.-suchfadus'tinent. provides,.fora ver-y broad. speed range. As has been. be'fbre pointed out," this isdue to the leverage eileet' of the spring5f onQtlielever 46.-, Bythisjarrangement'.' ,a wideY range ofspeedadus'tments may. be aeconlplls'fiedand the' sensitivity .proportionatelyY maintained.

As l'ierenbe'forel f s` tat e'ci' .r the governor." is .selflubricating.. Tlie'. 'top part'. 'ot .the base. 22. hasfa. port`5'8 and ai vrit'gtb. the atmosphere is pro-f vided in the top .of 'tliel'ous'ingf "Theport' establishes. communication between tnenusin'g anda. chamber 'Goin the base. The cnamber'ha's I a sridingnipple'$1iin itsilower 'end riding upon, f the gear f awnicn l'atter .portsk Bz" adapted toregifstejwitn the: nippieandi,perio'dcallyjpen theprankcasef l tto* tire!atmosphere-'whereby 'oir'j entrained in an aistream will" flowinto the Ihejcentrifugal' actiondrthe whirling armsA 35?'. will"seraatetheyoigdrpnebs'fimfthe air'streami' Somev of theo'il"willfallnpon'thebracket ln'd" W ,down @$911119 the plunger; .somepfssaid 01T wilPfIoWjd n j fetween"tlire'v 'Ififlb'zf andi/the fiore in'gassemL" blirandf` return to the cranlccase; While'l a surplus of oil will pass down"tlirou'gl"theportl Thistseparaticn primer-oil fromwh-eijair stream by means'of thearms 351. inakes" tli' 'governor' seiffluirf"catine.'1Y 1 1f l. itis pointedout'that no p'ositivelcckin' "me such7 asy nutsV oipother fastening mfeansm which reqiii "loosening beforeadjust'mentsean be made and thele'tl., illust be gfiteedlvfl "Bec'aisfef diametefqosinefsnart a9;}th'rcugiitiie butte the `groov"55, visfless ,ftheidianeterfof h Shaf-.t41andsine acomparatively. large res" ent force actson the` 'shagitllll the latter is locl de againsthunintentonal lrotationj. when. Thserraegementmle the regulates, for 15 'Heel perQQSesfJ-seli locking. Y A u l '.l'hefioresoine deseriptionfof;

the invencin..

size, shape and materials, as Well as in the details of the illustrated construction may be made, within the scope of the appended claims, without departing from the spirit of the invention.

What I claim and desire to secure by Letters Patent is:

1. An engine governor including, an enclosure having speed-responsive means therein, a governor shaft rotatable in the enclosure, the shaft having therein a recess with a closed bottom and a closed side wall a plunger having a vertically sliding movement in the recess, the shaft having an oil space inthe recess around the plunger, and damping means at said oil space at the lower end of the plunger.

2. An engine governor including, a housing, a base supporting the housing, a tubular governor shaft rotatable in the base, governor arms pivoted -to the shaft, the shaft having therein a recess with closed bottom and side walls a plunger slideable in the recess and having means engaging the arms, the plunger having a reduced portion providing an oil space in the shaft recess, and a piston on the lower end of the plunger below the oil space and within the recess.

3. An engine governor damping means including, a rotatable shaft having a recess with closed bottom and side walls and a body of liquid conned in said recess, speed responsive means, and a member connected with the speed responsive means movable longitudinally in the recess having a portion immersed in the body of liquid.

4. An engine governor damping means including, a rotatable shaft having a recess with closed bottom and side walls and a body of liquid confined in said recess, speed responsive means, a member connected with the speed responsive means movable longitudinally in the recess, and a piston on the member immersed in the body of liquid within the recess, there being a restricted flow passage along the piston within the recess.

5. An engine governor damping means including, an enclosure having a bore, a hub rotatable in the upper end of the bore, a bracket fixed Aon the hub, governor arms pivoted to the bracket, a rotatable shaft secured to the hub having a longitudinal bore open at -the top of the shaft fthe bottom and side walls of the bore being closed, a plunger movable in the bore of the shaft, a thrust member on the upper end of the plunger engaging the governor arms, the bore having a body of liquid in its lower end, and a damping member on the lower end of the plunger extending into the body of liquid. v

6. An engine governor damping means includ- Ying, an enclosure having a bore, a hub rotatable in the upper end of the bore, a bracket fixed on the hub, governor arms pivoted to the bracket, a rotatable shaftk secured to the hub having a longitudinal bore open at the top of the shaft the bottom and side walls of the bore being closed, a plunger movable in the bore of the shaft, a thrust member on the upper end of the plunger engaging the governor arms, the bore having a body of liquid in its lower end, and a piston on the lower end of said plunger, there being-a vbypass passage between the pis-ton and the wall of the shaft bore, the plunger being reduced in diameter immediately above the piston, whereby a liquid space is provided within said bore.

JOHN C. SDONNEGER.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Reggio Dec. 12, 1944 

